Local terrestrial landscape, aquatic conditions and dendritic distance shape bacterioplankton communities along a hydrological network located in the Colombian Amazon

Abstract

ABSTRACT : the study of aquatic ecosystems in the context of their networks implies a metacommunity perspective, where bacterioplankton local communities are connected by the movement of water across the landscape. Although this approach has shown that a balance between local selection and dispersal drives bacterioplankton community composition, little efforts have been devoted to explore the influence of the surrounding terrestrial landscape on the composition of these aquatic communities. Here we explored the relative importance of terrestrial landscape composition, local aquatic conditions, and dendritic distance in 4 explaining the variation in aquatic bacterial communities along a small Amazonian hydrological network.